CN110171768B - Truss tower and crossing construction protection equipment comprising same - Google Patents
Truss tower and crossing construction protection equipment comprising same Download PDFInfo
- Publication number
- CN110171768B CN110171768B CN201910387907.0A CN201910387907A CN110171768B CN 110171768 B CN110171768 B CN 110171768B CN 201910387907 A CN201910387907 A CN 201910387907A CN 110171768 B CN110171768 B CN 110171768B
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- Prior art keywords
- tower
- truss
- base
- main
- cross beam
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Electric Cable Installation (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a truss tower which comprises a base frame, wherein an upper connecting part and a lower connecting part are respectively arranged at the top and the bottom of the base frame, a front truss part is arranged at the front part of the base frame, a rear truss part is arranged at the rear part of the base frame, the front truss part is positioned at the lower part of the base frame, and the rear truss part is positioned at the upper part of the base frame. The invention also provides crossing construction protection equipment, which comprises a base and a main frame body arranged on the base, wherein the main frame body comprises a main tower, a cross beam and an auxiliary tower which are sequentially pivoted together, the main tower is the truss tower, the main tower is pivoted on the base through a lower connecting part at the bottom of the main tower, and the cross beam is pivoted on an upper connecting part at the top of the main tower and is positioned at the front side of the main tower.
Description
Technical Field
The invention relates to a truss tower and a crossing construction protection device.
Background
The truss structure has excellent bending resistance and shearing resistance, and is widely applied to engineering equipment such as house engineering, bridge engineering and cranes. In engineering equipment such as cranes, a truss tower is often used as a main tower, a standard cylindrical truss structure is usually adopted, the rear end of the bottom of the main tower is usually mounted on a base, a beam body such as a beam extending to the front of the main tower and a corresponding operation device are mounted at the top end of the main tower, the beam bodies and the operation device are usually mounted at the front end of the main tower, the large engineering equipment has large weight, and the beam bodies and the operation device are additionally subjected to the gravity of hanging objects and the like or the reaction force of pulling objects and the like in the operation process, so that the main tower is subjected to large transverse force and moment, the main tower is easy to bend or the engineering equipment is easy to tilt, and in the existing engineering equipment, a counterweight structure positioned at the opposite side of the beam is additionally required to be additionally mounted on the main tower to balance the stress of the main tower to a certain extent, so that the main tower is relatively complex and inconvenient to use.
The construction protection device is widely applied to engineering operation, for example, when electric equipment and the like above trains, roads and the like are constructed, the construction protection device can be utilized to span the upper parts of the trains, the roads and the like to provide an operation platform or serve as protection, the influence on the passing of the trains, the roads and the like is avoided, when engineering operation is carried out on complex terrains, rivers and the like, the construction protection device can also be utilized to span terrains, the construction protection device or similar engineering equipment generally comprises a base and a main frame body arranged on the base, the main frame body generally comprises a main tower, a cross beam and a subsidiary tower, the length and the weight of the cross beam and the subsidiary tower are large, the main tower can receive large transverse acting force and moment in the unfolding and folding process, the main tower of the existing construction protection device is often made of a standard cylindrical truss structure, therefore, materials with high strength are required to be adopted to improve the bending resistance and shearing resistance of the main tower, or counterweights and the like are required to be additionally arranged, the operation cost and the equipment volume are increased.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a truss tower which is simple and practical in structure and easy to manufacture and use.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
The truss tower comprises a base frame, wherein an upper connecting part and a lower connecting part are respectively arranged at the top and the bottom of the base frame, a front truss part is arranged at the front part of the base frame, a rear truss part is arranged at the rear part of the base frame, the front truss part is positioned at the lower part of the base frame, and the rear truss part is positioned at the upper part of the base frame.
Preferably, the upper part of the front truss part is provided with a first overlapping section, the lower part of the rear truss part is provided with a second overlapping section, and the first overlapping section is aligned with the second overlapping section in front-back direction.
Preferably, the length of the first superposition section is 1/3 to 1/2 of the total length of the front truss section; the length of the second overlapping section is 1/3 to 1/2 of the total length of the rear truss section.
Preferably, the bottom end of the front truss section is close to the bottom end of the base frame, and the top end of the rear truss section is close to the top end of the base frame.
Preferably, the length of the front truss part is 1/2 to 3/4 of the total length of the base frame, and the length of the front truss part is 1/2 to 3/4 of the total length of the base frame.
The invention also provides crossing construction protection equipment which is simple and reliable in structure and easy to manufacture and use, and comprises a base and a main frame body arranged on the base, wherein the main frame body comprises a main tower, a cross beam and an auxiliary tower which are sequentially pivoted together, the main tower is the truss tower, the main tower is pivoted on the base through a lower connecting part at the bottom of the main tower, and the cross beam is pivoted on an upper connecting part of the main tower and is positioned at the front side of the main tower.
Preferably, the base or the main tower is provided with a first driving device for driving the main tower to swing and fold or unfold relative to the base, the main tower or the cross beam is provided with a second driving device for driving the cross beam to swing and fold or unfold relative to the main tower, and the cross beam or the auxiliary tower is provided with a third driving device for driving the auxiliary tower to swing and fold or unfold relative to the cross beam.
Preferably, the cross beam is telescopic, and a fourth driving device for driving the cross beam to stretch and retract is arranged on the cross beam; the auxiliary tower is telescopic, and a fifth driving device for driving the auxiliary tower to stretch and retract is arranged on the auxiliary tower.
Preferably, the device further comprises a transport vehicle, and the base is arranged on the transport vehicle.
Preferably, the base is placed on the transport vehicle, the base is provided with a supporting device, and the supporting device can support the base and the main frame body on a supporting surface and lift the base and the main frame body away from the transport vehicle.
The beneficial effects of the invention are as follows: the truss tower is characterized in that the upper connecting part and the lower connecting part are respectively arranged at the top and the bottom of the main frame body, the rear truss part is arranged at the upper part of the rear part of the main frame body, and the front truss part is arranged at the lower part of the front part of the main frame body; the main tower, the cross beam and the auxiliary tower of the crossing construction protection equipment can swing and fold for transportation or swing and unfolding to form a crossing bracket, can be conveniently applied to engineering operations around railways, roads and the like for protecting or crossing obstacles and the like, and has excellent mechanical properties due to the adoption of the truss tower, the main tower does not need to be additionally provided with a balancing weight in use, and has simple and reliable structure and easy manufacture and use.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a block diagram of a preferred embodiment of a truss tower of the present invention;
FIG. 2 is a block diagram of a preferred embodiment of the cross-over construction equipment of the present invention;
FIG. 3 is a view showing the state of use of the present invention with the transport vehicle removed across the preferred embodiment of the construction equipment;
FIG. 4 is an enlarged partial view of portion A of FIG. 3;
fig. 5 is a schematic view showing a use state of a preferred embodiment of the construction protection apparatus for spanning in the present invention.
Detailed Description
Referring to fig. 1, the present invention provides a truss tower including a base frame 11, top and bottom portions of the base frame 11 are respectively provided with an upper connection portion 12 and a lower connection portion 13, a front truss portion 14 is provided at a front portion of the base frame 11, a rear truss portion 15 is provided at a rear portion thereof, the front truss portion 14 is located at a lower portion of the base frame 11, and the rear truss portion 15 is located at an upper portion of the base frame 11. The truss tower of the invention has the advantages that the upper connecting part 12 and the lower connecting part 13 are respectively arranged at the top and the bottom of the main frame body, the rear truss part 15 is arranged at the upper part of the rear part of the main frame body, and the front truss part 14 is arranged at the lower part of the front part of the main frame body, compared with the traditional columnar truss tower, the truss tower has the advantages that the structural strength of the truss tower is ensured, the gravity center of the truss tower is moved backwards, the upper connecting part 12 can be aligned with the lower connecting part 13, the upper connecting part 12 is prevented from tilting forwards, the mechanical property of the truss tower can be effectively improved, the assembly weight is not required to be increased in most of the existing use environments, the structure is simple and practical, and the truss tower is easy to manufacture and use.
In this embodiment, the truss tower is substantially in a vertical "Z" shape, and the front truss portion 14 and the rear truss portion 15 are each in a commonly used rectangular structure, and in practical application, the front truss portion 14 and the rear truss portion 15 may also be in other suitable truss shapes and truss structures such as a fan shape, a triangle shape, and the like, which are not limited thereto.
The truss tower can be used as a main bearing structure such as a lifting device, a crossing construction protection device, a bearing tower of a bridge, a building and the like, a column and the like, and can also be used as other structures such as a beam 23 and the like.
As a preferred embodiment of the truss tower of the present invention, it may also have the following additional technical features:
the upper portion of preceding truss portion 14 has first coincidence section, and the lower part of back truss portion 15 has the second coincidence section, and first coincidence section aligns with the second coincidence section front and back, makes the partial effort that preceding truss portion 14 received can pass through first coincidence section and second coincidence section and transmit back truss portion 15 on, can make full use of preceding truss portion 14 and back truss portion 15 carry out the dispersion atress, can effectively improve the mechanical properties of this truss tower.
The length of the first overlapping section is 1/3 to 1/2 of the total length of the front truss section 14; the length of the second overlapping section is 1/3 to 1/2 of the total length of the rear truss part 15, so that the mechanical property of the truss tower is ensured, the weight of the truss tower is not excessively increased, the center of the truss tower can be effectively moved backwards, and the mechanical property of the truss tower is improved.
The bottom of preceding truss portion 14 is close to the bottom of bed frame 11, and the top of back truss portion 15 is close to the top of bed frame 11 for truss portion can cover bed frame 11 as far as possible, can strengthen this truss tower holistic structural strength as far as possible, improves this truss tower's mechanical properties.
The length of the front truss portion 14 is 1/2 to 3/4 of the total length of the base frame 11, and the length of the front truss portion 14 is 1/2 to 3/4 of the total length of the base frame 11, so that a better balance between the weight and mechanical properties of the truss tower can be achieved, and in practical application, the lengths of the front truss portion 14 and the rear truss portion 15 can be flexibly adjusted as required, and the truss tower is not limited thereto.
The above additional technical features can be freely combined and superimposed by a person skilled in the art without conflict.
Referring to fig. 2 to 4, another aspect of the present invention provides a construction protection apparatus for a crossing, comprising a base 21 and a main frame provided on the base 21, the main frame comprising a main tower 22, a cross beam 23 and a sub tower 24 pivoted together in sequence, the main tower 22 being the truss tower described above, the main tower 22 being pivotally provided on the base 21 through a lower connection portion 13 at the bottom thereof, the cross beam 23 being pivotally provided on an upper connection portion 12 at the top of the main tower 22 and being located at the front side of the main tower 22. The main tower 22, the cross beam 23 and the auxiliary tower 24 of the crossing construction protection equipment can swing and fold for transportation or swing and unfolding to form a crossing bracket, can be conveniently applied to engineering operations around railways, roads and the like for protection, can also be used for crossing obstacles and the like, and the main tower 22 has excellent mechanical properties due to the adoption of the truss tower of the invention, does not need to additionally install a balancing weight in use, has a simple and reliable structure, and is easy to manufacture and use.
As a preferred embodiment of the cross-over construction protection device according to the invention, it may also have the following additional technical features:
The base 21 or the main tower 22 is provided with a first driving device 31 for driving the main tower 22 to swing and fold or unfold relative to the base 21, the main tower 22 or the cross beam 23 is provided with a second driving device 32 for driving the cross beam 23 to swing and fold or unfold relative to the main tower 22, and the cross beam 23 or the auxiliary tower 24 is provided with a third driving device 33 for driving the auxiliary tower 24 to swing and fold or unfold relative to the cross beam 23, so that the unfolding and folding operations of the main frame body can be automatically performed, and the unfolding and folding operations of the main tower 22, the cross beam 23 and the auxiliary tower 24 can be respectively and independently performed, so that the use is more flexible and convenient, and the operation and the use are easy.
In the present embodiment, the first driving device 31, the second driving device 32 and the third driving device 33 all adopt a hydraulic cylinder structure, which can provide a larger driving force, and is convenient for installation and control, however, in practical application, the first driving device 31, the second driving device 32 and the third driving device 33 may also adopt other common driving structures such as a cylinder, a motor and the like, and the present invention is not limited thereto.
The cross beam 23 is telescopic, and a fourth driving device 34 for driving the cross beam 23 to stretch and retract is arranged on the cross beam 23; the auxiliary tower 24 is telescopic, and the fifth driving device 35 for driving the auxiliary tower 24 to stretch and retract is arranged on the auxiliary tower 24, so that the volume of the main frame body after folding can be reduced, and the main frame body is convenient to transport and store, in the embodiment, the fourth driving device 34 and the fifth driving device 35 adopt chain transmission mechanisms driven by motors, the structure is simple and reliable, the stroke is long, the control and the use are easy, and of course, in practical application, the fourth driving device 34 and the fifth driving device 35 can also adopt other common driving structures such as screw rod mechanisms driven by motors, air cylinders and the like, and the main frame body is not limited to the above. Telescoping structures are widely used in the art and are not described in detail herein.
The embodiment also comprises a transport vehicle 25, and the base 21 is arranged on the transport vehicle 25, so that the transport vehicle can be conveniently moved and transported, and is convenient to use.
In this embodiment, the base 21 is placed on the transport vehicle 25, the support device is arranged on the base 21, the support device can support the base 21 and the main frame body on the support surface and lift the base 21 and the main frame body away from the transport vehicle 25, so that after the base 21 and the main frame body are supported on the support surface such as the ground by the support device, the base 21 and the main frame body are lifted away from the transport vehicle 25 by the support device, the transport vehicle 25 can be opened to perform other works, the occupation of vehicles can be reduced, the waste of resources is reduced, the use is more flexible and convenient, and after the operation is completed, the main frame body and the base 21 can be placed on the transport vehicle by removing the support force of the support device, so that the self-loading and self-unloading can be automatically performed. In this embodiment, the supporting device adopts a plurality of legs 26 which are driven by the sixth driving device 36 to be liftable, the structure is simple and reliable, the installation and the use are easy, the legs 26 are arranged on a plurality of supporting legs 27, the supporting legs 27 are arranged on the base 21 and driven by the seventh driving device 37 to swing and open and close, the supporting stress surface can be increased, the stability is improved, the position of the legs 26 can be conveniently adjusted, and the sixth driving device 36 and the seventh driving device 37 can adopt common driving structures such as a hydraulic cylinder structure, a cylinder, a screw rod mechanism driven by a motor and the like. Of course, in practical applications, other commonly used supporting structures, such as, but not limited to, a swing type supporting structure for the leg 26, can be used as the supporting device.
Referring to fig. 5, the crossing construction protection device of the present invention may be generally applied to railway protection to avoid affecting the operation of a train, and two crossing construction devices are generally used in combination, and a protection net 28 is hung on the cross beams 23 of two main frames, so that the protection net 28 is blocked above the railway to play a role of protection.
The above additional technical features can be freely combined and superimposed by a person skilled in the art without conflict.
The foregoing is only a preferred embodiment of the present invention, and all technical solutions for achieving the object of the present invention by substantially the same means are within the scope of the present invention.
Claims (8)
1. A truss tower, characterized in that: the device comprises a base frame (11), wherein an upper connecting part (12) and a lower connecting part (13) are respectively arranged at the top and the bottom of the base frame (11), a front truss part (14) is arranged at the front part of the base frame (11), a rear truss part (15) is arranged at the rear part of the base frame, the front truss part (14) is positioned at the lower part of the base frame (11), and the rear truss part (15) is positioned at the upper part of the base frame (11);
the upper part of the front truss part (14) is provided with a first overlapping section, the lower part of the rear truss part (15) is provided with a second overlapping section, and the first overlapping section is aligned with the second overlapping section in front-back direction;
the bottom end of the front truss part (14) is close to the bottom end of the base frame (11), and the top end of the rear truss part (15) is close to the top end of the base frame (11).
2. A truss tower according to claim 1, wherein: the length of the first overlapping section is 1/3 to 1/2 of the total length of the front truss section (14); the length of the second overlapping section is 1/3 to 1/2 of the total length of the rear truss section (15).
3. A truss tower according to claim 1, wherein: the length of the front truss section (14) is 1/2 to 3/4 of the total length of the base frame (11).
4. The utility model provides a stride across construction protective equipment which characterized in that: the novel tower truss comprises a base (21) and a main frame body arranged on the base (21), wherein the main frame body comprises a main tower (22), a cross beam (23) and an auxiliary tower (24) which are sequentially pivoted together, the main tower (22) is the truss tower according to any one of claims 1 to 3, the main tower (22) is pivoted on the base (21) through a lower connecting part (13) at the bottom of the main tower (22), and the cross beam (23) is pivoted on an upper connecting part (12) of the main tower (22) and is positioned at the front side of the main tower (22).
5. A crossover construction protective device as defined in claim 4, wherein: the base (21) or the main tower (22) is provided with a first driving device (31) for driving the main tower (22) to swing and fold or unfold relative to the base (21), the main tower (22) or the cross beam (23) is provided with a second driving device (32) for driving the cross beam (23) to swing and fold or unfold relative to the main tower (22), and the cross beam (23) or the auxiliary tower (24) is provided with a third driving device (33) for driving the auxiliary tower (24) to swing and fold or unfold relative to the cross beam (23).
6. A crossover construction protective device as defined in claim 5, wherein: the cross beam (23) is telescopic, and a fourth driving device (34) for driving the cross beam (23) to stretch and retract is arranged on the cross beam (23); the auxiliary tower (24) can stretch out and draw back, and a fifth driving device (35) for driving the auxiliary tower (24) to stretch out and draw back is arranged on the auxiliary tower (24).
7. A crossover construction protective device as defined in claim 5, wherein: the device also comprises a transport vehicle (25), wherein the base (21) is arranged on the transport vehicle (25).
8. A crossover construction protective device as defined in claim 7, wherein: the base (21) is placed on the transport vehicle (25), the base (21) is provided with a supporting device, and the supporting device can support the base (21) and the main frame body on a supporting surface and lift the base (21) and the main frame body off the transport vehicle (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387907.0A CN110171768B (en) | 2019-05-10 | 2019-05-10 | Truss tower and crossing construction protection equipment comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387907.0A CN110171768B (en) | 2019-05-10 | 2019-05-10 | Truss tower and crossing construction protection equipment comprising same |
Publications (2)
| Publication Number | Publication Date |
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| CN110171768A CN110171768A (en) | 2019-08-27 |
| CN110171768B true CN110171768B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910387907.0A Active CN110171768B (en) | 2019-05-10 | 2019-05-10 | Truss tower and crossing construction protection equipment comprising same |
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| CN (1) | CN110171768B (en) |
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| CN110670476B (en) * | 2019-10-22 | 2020-07-17 | 宋亚伟 | Emergent overpass of municipal administration |
| CN112607605B (en) * | 2020-12-29 | 2023-03-31 | 杭州盈江机械制造有限公司 | Safety protection structure of hoisting equipment |
| CN113555818B (en) * | 2021-07-19 | 2022-06-03 | 西南交通大学 | Separated type railway crossing protective equipment |
| CN113911933B (en) * | 2021-11-03 | 2022-09-13 | 国网江苏省电力有限公司扬州供电分公司 | Screen cabinet positioning vehicle capable of climbing over obstacle and working method |
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| CN110171768A (en) | 2019-08-27 |
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